(S)-5-羟甲基二氢呋喃-2-酮

β-D-glucosamine

(4-((1S,2R)-4-ethynyl-2-(2-phenylallyl)cyclopent-3-en-1-yl)but-1-en-2-yl)benzene

(5S)-(5-tert-butyldimethylsilyloxymethyl)furan-2(5H)-one

(5S)-5-(((tert-butyldimethylsilyl)oxy)methyl)tetrahydrofuran-2-ol